CVE-2026-59242
NVD: An authenticated user who can write an XCom value and then read it back with deserialize=true triggers the unsafe instantiation. NVD: Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals. OSV: Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint
5.4 Severity
MEDIUM EPSS
0.0058 (45) KEV
-
Source-published summary
NVD: An authenticated user who can write an XCom value and then read it back with deserialize=true triggers the unsafe instantiation. NVD: Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals. OSV: Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint
Possible impact
This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.
Affected context
vendor/product: apache / airflow
Remediation / advisory
Patch confirmed by source text; fixed version context: apache-airflow.
Why it matters
This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; CVSS 5.4 (MEDIUM); EPSS percentile 45; not listed in KEV; Patch confirmed by source text; fixed version context: apache-airflow; sources: NVD, OSV, Vendor Advisory.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV / Vendor Advisory description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.